Front portion of the swim mask having a projection configured as a shark&#39;s dorsal fin



FIG. 1 is a top and right side perspective view of a front portion of the swim mask having a projection configured as a shark's dorsal fin showing my new design; and,

FIG. 2 is a front elevational view thereof.

The broken lines environmental showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a front portion of the swim mask having a projection configured as a shark's dorsal fin, as shown and described. 